The long-awaited Yahoo! Messenger for Windows Vista now has a preview build available for download. The Vista version sports an entirely resdesigned user interface, tabbed chatting, the ability to transfer files of up to 2GB over the Messenger client, and a corresponding Sidebar gadget to boot.

A couple of things are missing from this build, however. Users eager to try out this version will have to do without both voice and video chat, and will also have to deal with poorer performance than the traditional Yahoo! Messenger. There is also no 64 Bit version of the software, although it is unknown if the final build will include a 64 Bit version.